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Terahertz-wave generation in quasi-phase-matched GaAs
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10.1063/1.2357551
/content/aip/journal/apl/89/14/10.1063/1.2357551
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/14/10.1063/1.2357551

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Experimental setup for terahertz generation and Michelson interferometry.

Image of FIG. 2.
FIG. 2.

Spectra of terahertz pulses obtained by Michelson interferometry. (a) Sample DB-77, pump at ; (b) sample DB-77, pump at ; (c) sample B10, pump at ; and (d) sample A10, pump at . The spectra are distorted by water vapor absorption (high-resolution transmission molecular absorption database water transmission spectrum for path is shown on top of each plot). Insets show original interferograms.

Image of FIG. 3.
FIG. 3.

Terahertz tuning curve for the pump wavelength. Dashed curve—theoretical.

Image of FIG. 4.
FIG. 4.

Optical-to-terahertz conversion efficiency as a function of peak pump intensity for samples DB-77 (central frequency , circles) and A3 (central frequency , triangles). The average pump beam sizes were (open circles), (closed circles), (triangles), and (crossed circles). The pump wavelengths were (open circles and triangles) and (filled and crossed circles). Dashed lines—linear fits.

Tables

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Table I.

Parameters of the QPM GaAs samples.

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/content/aip/journal/apl/89/14/10.1063/1.2357551
2006-10-04
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Terahertz-wave generation in quasi-phase-matched GaAs
http://aip.metastore.ingenta.com/content/aip/journal/apl/89/14/10.1063/1.2357551
10.1063/1.2357551
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